Junghans Watch Spektrum Mega Solar. 18/1425.44. This breathtaking Junghans Spektrum Mega Solar watch combines the latest technology of radio controlled solar movements with a lightweight stainless steel and ceramic design. The multi frequency radio controlled solar J615.84 calibre housed within this watch is completely independent of limited energy resources and provides exact timekeeping on three continents using only the power of sunlight. The German made watch movement also boasts a power reserve of up to 21 months, a big date window at 6 o clock and sleep mode after 72 hours. This Junghans Spektrum Mega Solar watch continues to impress with its striking two toned stainless steel and matte black ceramic case that is not only lightweight but highly impervious to scratches. The case measures to 41.6mm in width and a sleek 9.6mm in height allowing it to mould elegantly and comfortably to the wrist. The Junghans Mega Solar watch is also fitted with a matching two toned bracelet and folding clasp for further ease and comfort. The dial of Junghans watch is breathtaking, crafted from mineral crystal and decorated with environmentally friendly luminous hands, dial print and minute track. Last but not least, this solar powered watch is water resistance to 100 metres and comes fitted with a screw down case back and sapphire crystal glass coated with an anti-reflective treatment.